대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

다른 셀로부터의 간섭을 고려한 다중안테나 제로 포싱 빔 형성 시스템의 성능 최대화

Sum-rate Maximization of Zero-forcing Beamforming MIMO Systems with Intercell Interference

  • 구미현 (한양대학교 전자전기제어계측공학부) ;
  • 김동우 (한양대학교 전자전기제어계측공학부)
  • Ku, Mi-Hyeon (Department of Electrical and Computer Engineering Hanyang University) ;
  • Kim, Dong-Woo (Department of Electrical and Computer Engineering Hanyang University)
  • 발행 : 2007.07.11
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초록

The sum-rate capacity of multi-antenna broadcast channels recently has attracted much research interests. However, those effort mainly has focused on a single-cell system. In this paper, we consider a multi-cell system where a transmitter uses zero-forcing beamforming with multiple antennas. We select a linear zero-forcing weight that maximizes the sum-rate when intercell interference exists. With numerical investigation, we will show the sum-rate gain achieved by the proposed method gets larger when the number of interfering cells increases.

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